Stanfield, Oregon has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 41.1 °F (low) to 65.2 °F (high). Annual precipitation averages 9.8 Inches. Stanfield is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around Apr. 1 - Apr. 10 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 28.4 °F | 42.1 °F | 1.28 in. |
| February | 29.4 °F | 48.1 °F | 1.01 in. |
| March | 33.7 °F | 57.4 °F | 0.97 in. |
| April | 38.9 °F | 64.6 °F | 0.84 in. |
| May | 46.0 °F | 73.5 °F | 0.97 in. |
| June | 52.2 °F | 80.3 °F | 0.68 in. |
| July | 58.0 °F | 90.0 °F | 0.17 in. |
| August | 57.1 °F | 89.3 °F | 0.2 in. |
| September | 49.2 °F | 80.0 °F | 0.33 in. |
| October | 39.7 °F | 65.3 °F | 0.82 in. |
| November | 32.6 °F | 50.5 °F | 1.16 in. |
| December | 28.1 °F | 41.4 °F | 1.35 in. |
| Annual | 41.1 °F | 65.2 °F | 9.78 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 75-100 Days |
| Plant Hardiness Zone | Zone 7a : 0°F to 5°F |
| Plant Hardiness Zone - 2012 | Zone 7a : 0°F to 5°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |